function modifyItemToSelect(objSelect, objItemValue, objItemText) {
	for (var i = 0; i < objSelect.options.length; i++) {
		if (objSelect.options[i].value == objItemValue) {
			objSelect.options[i].text = objItemText;
			break;
		}
	}
}
function deleteItemToSelect(objSelect, objItemValue) {
	for (var i = 0; i < objSelect.options.length; i++) {
		if (objSelect.options[i].value == objItemValue) {
			objSelect.options.remove(i);
			break;
		}
	}
}
modifyItemToSelect(form1['branchDept'], '', '全部');
deleteItemToSelect(form1['reportType'], '');
modifyItemToSelect(form1['callType'], '', '全部');